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Update Procedure for LHC Sequence Files with New MADX Version

DESCRIPTION

Learn about necessary changes to LHC sequence files for compatibility with the latest MADX version. Remove "BV" attributes and adjust strength variable signs in beam 2 elements and correctors.

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Update Procedure for LHC Sequence Files with New MADX Version

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Presentation Transcript

  1. LHC beam 2 model What will change in the LHC sequence files to be used with the new MADX version ?

  2. Old situation:

  3. New situation : 1. remove all "BV" attributes in element or class definitions (concerns all single bore dipoles and orbit correctors): MBX : RBEND, .... , BV; MCBXH : HCORRECTOR, .... , BV; 2. change the signs of the strength variables in beam 2 (concerns all twin aperture dipoles and orbit correctors): MB.A10L1.B2, ANGLE := -ab.a81, K0 := -kb.a81; MBRC.4L1.B2, ANGLE := -ad2.l1, K0 := -kd2.l1; MCBH.18R1.B2, KICK := -acbh18.r1b2; MCBV.19R1.B2, KICK := -acbv19.r1b2;

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